1. Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, Białystok, Poland
2. Department of Statistics and Medical Informatics, Medical University of Bialystok, Białystok, Poland
3. Department of Neurosurgery, Medical University of Bialystok, Białystok, Poland
4. Department of Medical Pathomorphology, Medical University of Bialystok, Białystok, Poland
5. Department of Biophysics, Medical University of Białystok, Białystok, Poland
6. Department of Pediatric Surgery, Medical University of Białystok, Białystok, Poland
7. Institute of Biomedical and Clinical Science, Hatherly Laboratories, University of Exeter Medical School, Exeter, UK